Non-chattering brake-hanger.



A. WALLACE.

NON-CHATTERING BRAKE HANGER. APPLICATION FILED FEB. 6. 1914.

1 1 38A30. Patented May 4, 1915.

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ALLEN WALLACE, or nooansrown, new Jnnsnir, assrsnon, r0 'rnn BALDWINLoco MGTIVE WORKS, or PHILADELPHIA, PENNSYLVANIA, A conronarron or renn-SYLVANIA.

NON-CHATTERING BRAKIii-HANGER,

Specification of Letters Patent.

Application filed February 6, 1914. Serial No. 816,993.

To all whom it may concern Be it known that I, ALLEN WALLACE, a citizenof the United States, residing in Moorestown, Burlington county, NewJersey, have invented certain Improvements in Non-chatteringBrake-Hangers, of which the following is a specification.

The object of my invention is to provide a simple and effective meansfor preventing the chattering of the parts of a brake hanger. Thisobject I attain in the following manner, reference being had to theaccompanying drawings, in which Figure 1, is a longitudinal sectionalView of sufiicient of a car brake to illustrate my invention; Fig. 2, isanenlarged transverse sectional view on the line aa, Fig. 1; Fig. 8, isa sectional view on the line bb, Fig. 2; Fig. 4., is a perspective viewof the spring which forms the anti-rattler; and Fig. 5, is a view of amodification.

Referring to the drawings, 1 is the transom of the car truck. I

2 is the brake beam extending from one side of the truck to the otherand having the brake heads 3, which carry the brake shoes.

4;, a are the brackets secured to the transom near each end, in thepresent instance.

5, 5 are the links which form the hangers.

'6, 6 are the brackets secured to the brake beam.

7 is'a bolt which extends through the bearings 8 on the brackets at andthrough an opening in the upper end of the hanger '3.

9 is a bolt extending through the bearings 10 on a bracket 6 and throughan opening in the lower end of the hangers 5.

In order that the brake shoes will accommodate themselves to the wheelsof the truck and to allow a free movement of the brake beam, theconnections between the two bearings and the link or hangers are loose,consequently, there is a chattering of the parts as the truck travelsover the rails. In order to reduce this chattering, I provide a simpleand effective means consisting of a U-shaped spring 11 having an opening12 near each end, as illustrated in Fig. 4. The bolt is passed throughthe openings. In the present instance, one armof the spring restsagainst the head '13 of the bolt 7 and the other arm rests against theside of the link or hanger 5, consequently, when the parts areassembled, the spring forces the hanger 5 away from one bearing 8 and inclose contact with the other bearing, so that, while the hanger can moveunder pressure, chattering is eliminated. The same device is applied tothe lower bearing. The spring 11 bears against the head "14 of the bolt9 and bears against one side of the hangeror link 5, causing the hangerto rest in close contact with one of the bearings 10 and to be free ofthe other bearing.

In Fig. 5, I have shown my invention applied to a double hanger. The twolinks 5 are located one on each side of the bearing 8 and bearing 10 andthis latter bearing is formed on the brake head 3*, in the presentinstance. The springs ll" are mounted between one of the links andthe'heads of the bolts. I a

The invention relates solely to the antichattering device and not to anyparticular construction of the brake mechanism.

I/Vhile I have shown one arm of the U shaped spring bearing against thehead of the bolt, it will be understood that the bolt may be arranged sothat the spring will bear against the nut thereon; the nut being theequivalent of the head.

I claim "1. The combination in brake mechanism for car trucks, of atransom; a bracket thereon having bearings spaced a distance apart; ahanger less in width than the distance be tween the bearings; brakemechanism suspended from the hanger; a bolt extending through thebearings and the hanger; and a U-shaped spring having openings near theends, the bolt passing through the openings, one end of the springbearing against the bolt and the other end bearing against the hanger,causing the hanger to be forced against one of the bearings.

2. The combination in'brake mechanism for car trucks, of upper and lowerbearings, the upper bearing being secured to the transom of the truckand the lower bearing being secured to the truck beam; a hangerconnecting the bearings; a bolt passing through In testimony whereof, Ihave signed my name to this specification, 1n the presence oi tWosubscribing witnesses.

ALLEN l/VALLAGE.

each bearing and the hanger; and two U- shaped springs, each springhaving an opening in each end, one spring being mounted on one bolt andthe other Spring being 5 mounted on the other bolt and each springWitnesses:

bearing against the head of its bolt and the WM. A. BARR, hanger. Joe.H. KLEIN.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

